Effects of Water and Soil Conservation Practices on Reducing Pollution from Agricultural Nonpoint Source in Northeast China

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Soil and water loss from sloped farmland is a mainly environmental and agricultural issue worldwide. Many management practices have been selected and are effective to reduce sediment and associated nutrient losses. Fallout 210Pbex tracer technique was used to quantity the soil erosion in terrace cultivation and contour farming field. The soil erosion rate from up-and-down slope field was estimated by RUSLE2 model. The sediment yields from contouring and terraces were reduced 63% and 95%, respectively, by comparison with up-and-down tillage. Terraces could reduce soil erosion 74% and intercept runoff 45% than contouring tillage. However, the concentrations of nitrogen and phosphorus with runoff from terraces were greater than those from contouring field. Transport loads of TP, DTP, and phosphate (PO43- -P) through water from terraces increased 4.54, 1.34, and 2.53 times than those from contouring tillage, respectively. It is concluded that no single mitigation option can reduce all pollutants. Terrace can achieve pollutants reduction target in tandem with other soil and water conservations.

Info:

Periodical:

Advanced Materials Research (Volumes 356-360)

Edited by:

Hexing Li, Qunjie Xu and Daquan Zhang

Pages:

2473-2478

DOI:

10.4028/www.scientific.net/AMR.356-360.2473

Citation:

Y. H. Yang et al., "Effects of Water and Soil Conservation Practices on Reducing Pollution from Agricultural Nonpoint Source in Northeast China", Advanced Materials Research, Vols. 356-360, pp. 2473-2478, 2012

Online since:

October 2011

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$35.00

[1] S.L. Zhang and J.P. Zhuang: Chinese of Journal of Ecology Vol. 17, Issue 6 (1998), p.51 (In Chinese).

[2] Y.B. Zhang, F.L. Zheng and M. Wu: Advances in Water Science Vol. 18, Issue 1 (2007), p.123 (In Chinese).

[3] C.L. Jiang, G.B. Cui, X.Q. Fan and Y.B. Zhang: Environmental Science Vol. 25, Issue 2 (2004), p.125 (In Chinese).

[4] P.W. Gassman, E. Osei, A. Saleh, J. Rodecap, S. Norvell and J. Williams: Agriculture, Ecosystems and Environment Vol. 117, Issue 2-3 (2006), p.135.

[5] A.A. Szögi, B.G. Leib, C.A. Redulla, R.G. Stevens, G.R. Mathews and D.A. Strausz: Agricultural Water Management Vol. 91, Issue 1-3 (2007), p.43.

[6] G. Evanylo, C. Sherony, J. Spargo, D. Starner, M. Brosius and K. Haering: Agriculture, Ecosystems and Environment Vol. 127, Issue 1-2 (2008), p.50.

DOI: 10.1016/j.agee.2008.02.014

[7] N.M. Zhang: Soil and Environmental Sciences Vol. 11, Issue 1 (2002), p.101 (In Chinese).

[8] Q.S. Bao and H.D. Wang: Scientia Geographica Sinica Vol. 16, Issue 1 (1996), p.66 (In Chinese).

[9] T.F. Guo: Geographical Research Vol. 14, Issue 4 (1995), p.1 (In Chinese).

[10] M. Cui, Q.G. Cai, A.X. Zhu and H.M. Fan: Journal of Geographical Sciences Vol. 17, Issue 3 (2007), p.375.

[11] X. Zhang, Y. Qi, D.E. Walling, X. He, A. Wen and J. Fu: Catena Vol. 68, Issue 1 (2006), p.1.

[12] Y.H. Yang, B.X. Yan, B. Shen and H.C. Cao: Scientia Geographica Sinica Vol. 30, Issue 1 (2010), p.124.

[13] X.C. Zhang, M.A. Shao, Z.B. Huang and Z.F. Lu: Acta Ecologica Sinica Vol. 20, Issue 6 (2000), p.1038 (In Chinese).

[14] J.D. Gaynor and W.I. Findlay: Journal of Environmental Quality Vol. 24, Issue 4 (1995), p.734.

[15] N.R. Maria, L. Antonio, G. Monica and L.P. Antonio: Environmental Management Vol. 38, Issue 2 (2006), p.253.

[16] B.K. Mishra and P.S. Ramakrishnan: Agriculture, Ecosystems & Environment Vol. 9, Issue 1 (1983), p.69.

[17] C.J. Stevens and J.N. Quinton: Critical Reviews in Environmental Science and Technology Vol. 39, Issue 6 (2009), p.478.

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